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| White LED Cup Light Controller Features Precision reference voltage: 0.5V (2%) Wide operation input voltage: 3.0V ~ 18V High output loading current: typ. 2.0A Fixed PWM frequency: typ. 360KHz Programmable soft-start Thermal shutdown and short circuit protection Compensation and ON/OFF control Package: SOP8 Pb General Description The MR163, a 1-chip composed of high current MOS with a fixed PWM oscillator and an error amplifier with a 0.5V precision voltage reference for LED current feedback and driving capaciblity, applied to offer space and low cost in many applications such as the DC/DC bcuk converter and serial white LEDs cup light controller and driver. Typical Application Circuit Vin 1 2 4 IC1 Vcc SS FB LX2 LX1 IN8 7 3 L1 Vout D1 White LED MR163 GND1 GND2 D2 10uH SK23 + 5 6 C3 22uF C2 0.1 C1 0.1 R1 1 High-Brightness White LED Cup Application Example http://www.hawyang.com.tw/ -1- MR163 Functional Block Diagram MARK VIEW PIN DESCRIPTION NAME STATUS VCC P I I I P DESCRIPTION IC Power Supply Soft-Start / SCP Control Input Negative Feedback Input Compensation Input (On/Off) IC Ground LX1 LX2 GND2 GND1 MR163 A3472L VCC SS FB IN- SS INFB GND1 GND2 LX1 LX2 O MOS Switching Output http://www.hawyang.com.tw/ -2- IC Date Code Distinguish MR163 A3472L Year Week Lot No. Pb free Logo: Hawyang logo Product name: MR163 (for example) D/C: A3472 A - year 2001, B - year 2002, C - year 2003 34 - week 72 - lot no. last 2 code Order Information Part Number MR163DLF MR163DLF(R) Operating Temperature -20J a -20J a 85J 85J Package SOP8 SOP8 Description Tube Tape & Reel http://www.hawyang.com.tw/ -3- Absolute Maximum Ratings Symbol VCC VFB VO IO Tj SOP package Parameter Supply Voltage Analog Input Voltage LX Output Voltage Output Current Maximum Junction Temperature Thermal Resistance Junction to Ambient Power Dissipation Rating +20 V -0.3 Va +1.2V +30 V 3A 150J 175J /W SOP8 package Ta=25J Ta=70J 650mW 550mW -20J a -65J a 85J 150J TOPR TSTG soldering, 10 sec Operating Temperature Range Storage Temperature Range Lead Temperature +260J http://www.hawyang.com.tw/ -4- Electrical Characteristics Electrical characteristics over recommended operating temperature range,VCC=6V,unless otherwise noted Reference Section PARAMETER Output voltage Input regulation SYMBOL TEST CONDITIONS MIN VREF VREF FB is connected to INVCCx 3.6 V to 20 V 0.49 - TYP 0.5 2.0 1 1 MAX 0.51 13 2 2 UNIT V mV % TAx -20J to 25J Output voltage change VREF /VREF with temperature TAx 25J to 85J All typical values are at TAx 25J . Soft-Start (S.S.) Section PARAMETER Source Current Threshold Voltage SYMBOL TEST CONDITIONS MIN ISS VSST VSS=0V -7 0.9 TYP -12 1.0 MAX -17 1.1 UNIT A V All typical values are at TAx 25J . Short Circuit Protection Section PARAMETER Source Current Threshold Voltage ON/OFF time ratio SYMBOL TEST CONDITIONS MIN ISCP VSCPT r VSCP = 0V VFB > 450mV VFB = 0V -7 1.0 - TYP -12 1.15 1/20 MAX -17 1.2 - UNIT A V - All typical values are at TAx 25J . Thermal Shutdown Section PARAMETER TSD temperature SYMBOL TEST CONDITIONS MIN TSD - TYP 145 MAX - UNIT J http://www.hawyang.com.tw/ -5- Electrical Characteristics (Cont.) Error Amplifier Section PARAMETER Input Bias Current Open Loop Gain Frequency Bandwidth FB Swing Voltage Positive Negative SYMBOL TEST CONDITIONS MIN IB AVO FT VOH VOL ISO ISI AVO = 0dB VIN- = 0.3V VIN- = 0.7V VFB = 500mV -30 30 -1.0 0.75 TYP -0.2 40 6 0.87 0.05 -45 45 MAX 1.0 0.9 0.2 UNIT A dB MHz V FB Source Current FB Sink Current A All typical values are at TAx 25J . Idle Period Adjustment Section PARAMETER Maximum Duty Cycle SYMBOL TEST CONDITIONS MIN TDUTY VIN- = 0.2V - TYP 90 MAX - UNIT % Total Device Section PARAMETER Average Supply Current SYMBOL TEST CONDITIONS MIN IAV - TYP 3 MAX 5 UNIT mA Output Power-MOS Section PARAMETER Breakdown Voltage Source Current On Resistance Leakage Current SYMBOL TEST CONDITIONS MIN VDSS IDS RDS(ON) IDS(OFF) VFB = 0.1V VCC = 5.0V, VIN- = 0V VCC = 10.0V, VIN- = 0V - TYP -20 -2 70 42 5 MAX 150 90 UNIT V A m A http://www.hawyang.com.tw/ -6- Typical Characteristics Curve Fig.1 Fig.2 Fig.3 Fig.4 Fig.5 Fig.6 http://www.hawyang.com.tw/ -7- Detailed Description This is a simple application circuit for a 5W Whit light LED Application example. The MR163 built-in power-on soft-start function, the time of soft-start is adjusted by C2 capacitor, R1 is current senese for LED, when the sense current time the R1 would generate a sense feedback voltage to IC IN- terminal, IC should turn off LX1 and LX2 and keep L1 energy transfer to Vout and hold the LED lighting until and sense current isn't enough. C3 and C4 are the capacitors and they keep the supply and Vout voltage smoothly. It is a few external parts using and reduced PCB space very suitable for a tiny LED light system environment. Vin 1 2 4 IC1 Vcc SS FB LX2 LX1 IN8 7 3 R1 1 D2 10uH SK23 D1 L1 Vout MR163 GND1 GND2 White LED C4 + 5 C2 0.1 C1 0.1 Fig. 7 MR163 Application Circuits 6 C3 22uF http://www.hawyang.com.tw/ -8- Package outline SOP 8 0.08typ. E 0.16typ 0.05typ .1X54 00 cX L D A SEATING PLANE A1 0.04max NOTE: 1.JEDEC OUTLINE:MS-012 AA 1. DIMENSIONS "D" DOES NOT INCLUDE MOLD FLASH,PROTRUSIONS OR GATE BURRS.MOLD FLASH,PROTRUSIONS AND GATE BURRS SHALL NOT EXCEED .15mm (.0.06in) PER SIDE 2. DIMENSIONS "E" DOES NOT INCLUDE INTER-LEAD FLASH,OR PROTRUSIONS. INTER-LEAD FLASH AND PROTRUSIONS SHALL NOT EXCEED .25mm (.0.10in) PER SIDE. SYMBOLS A A1 D E H L MIN 0.053 0.004 0.189 0.150 0.228 0.016 0 MAX 0.069 0.010 0.196 0.157 0.244 0.050 8 H http://www.hawyang.com.tw/ -9- Packing Specifications Box TUBE INSIDE BOX AND CARTON TAPE & REEL INSIDE BOX AND CARTON Packing Quantity Specifications 100 EA / TUBE 100 TUBES / INSIDE BOX 4 INSIDE BOXES / CARTON 2500 EA / REEL 4 INSIDE BOXES / CARTON http://www.hawyang.com.tw/ - 10 - Label Specifications Hawyang Semiconductor Corp., Product: MR163DLF(R) Lot No.: xxxxxxxx D/C: A3472 Q'ty: 2,500 MSL 3 Pb Carrier Tape Dimensions APPLICATION SOP8 W P 8.00.1 E 1.750.1 F 5.50.1 D 1.550.1 D1 1.5+0.25 APPLICATION SOP8 P0 4.00.1 P1 2.00.1 A0 6.40.1 B0 5.200.1 K0 2.10.10 t 0.300.013 http://www.hawyang.com.tw/ - 11 - C over Tape Dimensions CARRIER WIDTH COVER TAPE WIDTH 12 9.3 16 13.3 24 21.3 (mm) Reel Dimensions APPLICATION MATERIAL PLASTIC A B C 12.75+0. 15 D T1 12.4+0. 2 T2 2.0+0.2 SOP8 REEL (WHILE) 3300.1 621.5 2+0.6 http://www.hawyang.com.tw/ - 12 - |
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